From Consumer Wiki

MOLD (RESIDENTIAL)

Molds are fungi that are found virtually everywhere, indoors and outdoors. Mold grows where there is moisture. Exposure to damp and moldy environments may cause a variety of health effects including allergic reactions, asthma, and other respiratory complaints. Several federal and state agencies provide information citizens can use to protect themselves from residential mold. For local assistance citizens may contact their County or City Department of Health, Housing, or Environmental Health.

The California Indoor Air Quality (IAQ) Program offers information and publications residents can use to protect themselves from mold. The IAQ Web site offers publications in English and Spanish.